Home / 21,222-29,289.06-12,838.56

Finding the Fourth Proportional to 21,222, 29,289.06 and 12,838.56

Calculator

Solution

The fourth proportional to 21,222, 29,289.06 and 12,838.56 is: 17,718.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,222 : 29,289.06 = 12,838.56 : x
  2. Step 2: Convert to fraction form
    21,222/29,289.06 = 12,838.56/x
  3. Step 3: Cross multiply
    21,222x = 29,289.06 × 12,838.56
  4. Step 4: Simplify right side
    21,222x = 376,029,354.15
  5. Step 5: Solve for x
    x = 376,029,354.15/21,222
  6. Step 6: Final answer
    x = 17,718.85

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.